Penicillin is an antibiotic that was discovered in 1928. Today, many species of bacteria have acquired resistance to penicillin. This adaptation occurred as the result of
A) mutualism.
B) symbiosis.
C) genetic mutation.
D) divergent evolution.
D) Divergent Evolution. This is because Divergent Evolution is the process of tracking how the species has changed over a certain period of time. Penicillin was introduced in 1928 so now because we have the history to compare people are able to track how certain species are now developing a resistance.
